EP2104707A1 - Kautschukzusammensetzung, enthaltend eine polymaleinimidverbindung - Google Patents
Kautschukzusammensetzung, enthaltend eine polymaleinimidverbindungInfo
- Publication number
- EP2104707A1 EP2104707A1 EP07856873A EP07856873A EP2104707A1 EP 2104707 A1 EP2104707 A1 EP 2104707A1 EP 07856873 A EP07856873 A EP 07856873A EP 07856873 A EP07856873 A EP 07856873A EP 2104707 A1 EP2104707 A1 EP 2104707A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition
- composition according
- polymaleimide
- phr
- carbon atoms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 128
- 229920001971 elastomer Polymers 0.000 title claims abstract description 56
- 239000005060 rubber Substances 0.000 title claims abstract description 42
- 150000001875 compounds Chemical class 0.000 title claims description 24
- 238000004073 vulcanization Methods 0.000 claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 239000012763 reinforcing filler Substances 0.000 claims abstract description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 17
- 239000000806 elastomer Substances 0.000 claims abstract description 14
- -1 maleimide compound Chemical class 0.000 claims abstract description 12
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 8
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920003244 diene elastomer Polymers 0.000 claims description 43
- 229920001577 copolymer Polymers 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 23
- 229910052717 sulfur Inorganic materials 0.000 claims description 20
- 125000004432 carbon atom Chemical group C* 0.000 claims description 19
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Natural products CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000011593 sulfur Substances 0.000 claims description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 15
- 244000043261 Hevea brasiliensis Species 0.000 claims description 13
- 229920003052 natural elastomer Polymers 0.000 claims description 13
- 229920001194 natural rubber Polymers 0.000 claims description 13
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 10
- 239000006229 carbon black Substances 0.000 claims description 9
- 239000011265 semifinished product Substances 0.000 claims description 8
- 229920003051 synthetic elastomer Polymers 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 125000002947 alkylene group Chemical group 0.000 claims description 6
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical group C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- WHEOHCIKAJUSJC-UHFFFAOYSA-N 1-[2-[bis[2-(2,5-dioxopyrrol-1-yl)ethyl]amino]ethyl]pyrrole-2,5-dione Chemical group O=C1C=CC(=O)N1CCN(CCN1C(C=CC1=O)=O)CCN1C(=O)C=CC1=O WHEOHCIKAJUSJC-UHFFFAOYSA-N 0.000 claims description 5
- 229920003049 isoprene rubber Polymers 0.000 claims description 5
- IUJLOAKJZQBENM-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SNC(C)(C)C)=NC2=C1 IUJLOAKJZQBENM-UHFFFAOYSA-N 0.000 claims description 5
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 5
- 125000005842 heteroatom Chemical group 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 229920002857 polybutadiene Polymers 0.000 claims description 4
- 125000000732 arylene group Chemical group 0.000 claims description 3
- 125000002993 cycloalkylene group Chemical group 0.000 claims description 3
- 125000000816 ethylene group Chemical class [H]C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 3
- 238000004898 kneading Methods 0.000 claims description 3
- 238000010059 sulfur vulcanization Methods 0.000 claims description 2
- 150000001721 carbon Chemical group 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 21
- 150000001993 dienes Chemical class 0.000 description 19
- 238000010411 cooking Methods 0.000 description 12
- 239000011256 inorganic filler Substances 0.000 description 11
- 238000005259 measurement Methods 0.000 description 11
- 229920003192 poly(bis maleimide) Polymers 0.000 description 11
- 230000003014 reinforcing effect Effects 0.000 description 11
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 10
- 229910003475 inorganic filler Inorganic materials 0.000 description 10
- 230000002787 reinforcement Effects 0.000 description 8
- 235000019241 carbon black Nutrition 0.000 description 7
- 238000010304 firing Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 description 5
- 150000003923 2,5-pyrrolediones Chemical class 0.000 description 5
- 241001441571 Hiodontidae Species 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 5
- 239000007822 coupling agent Substances 0.000 description 5
- 125000005439 maleimidyl group Chemical group C1(C=CC(N1*)=O)=O 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 229960002447 thiram Drugs 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 239000012990 dithiocarbamate Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 3
- 229920005549 butyl rubber Polymers 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 125000002897 diene group Chemical group 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 229920001195 polyisoprene Polymers 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000930 thermomechanical effect Effects 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- SDJHPPZKZZWAKF-UHFFFAOYSA-N 2,3-dimethylbuta-1,3-diene Chemical compound CC(=C)C(C)=C SDJHPPZKZZWAKF-UHFFFAOYSA-N 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000001588 bifunctional effect Effects 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- AUZONCFQVSMFAP-UHFFFAOYSA-N disulfiram Chemical compound CCN(CC)C(=S)SSC(=S)N(CC)CC AUZONCFQVSMFAP-UHFFFAOYSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012764 mineral filler Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000003878 thermal aging Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- MBBWTVUFIXOUBE-UHFFFAOYSA-L zinc;dicarbamodithioate Chemical class [Zn+2].NC([S-])=S.NC([S-])=S MBBWTVUFIXOUBE-UHFFFAOYSA-L 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- APPOKADJQUIAHP-GGWOSOGESA-N (2e,4e)-hexa-2,4-diene Chemical compound C\C=C\C=C\C APPOKADJQUIAHP-GGWOSOGESA-N 0.000 description 1
- PRBHEGAFLDMLAL-GQCTYLIASA-N (4e)-hexa-1,4-diene Chemical compound C\C=C\CC=C PRBHEGAFLDMLAL-GQCTYLIASA-N 0.000 description 1
- OJOWICOBYCXEKR-KRXBUXKQSA-N (5e)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(=C/C)/CC1C=C2 OJOWICOBYCXEKR-KRXBUXKQSA-N 0.000 description 1
- PMJHHCWVYXUKFD-SNAWJCMRSA-N (E)-1,3-pentadiene Chemical compound C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 description 1
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 1
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- CBXRMKZFYQISIV-UHFFFAOYSA-N 1-n,1-n,1-n',1-n',2-n,2-n,2-n',2-n'-octamethylethene-1,1,2,2-tetramine Chemical compound CN(C)C(N(C)C)=C(N(C)C)N(C)C CBXRMKZFYQISIV-UHFFFAOYSA-N 0.000 description 1
- IGGDKDTUCAWDAN-UHFFFAOYSA-N 1-vinylnaphthalene Chemical compound C1=CC=C2C(C=C)=CC=CC2=C1 IGGDKDTUCAWDAN-UHFFFAOYSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 1
- SBYMUDUGTIKLCR-UHFFFAOYSA-N 2-chloroethenylbenzene Chemical class ClC=CC1=CC=CC=C1 SBYMUDUGTIKLCR-UHFFFAOYSA-N 0.000 description 1
- PDELBHCVXBSVPJ-UHFFFAOYSA-N 2-ethenyl-1,3,5-trimethylbenzene Chemical group CC1=CC(C)=C(C=C)C(C)=C1 PDELBHCVXBSVPJ-UHFFFAOYSA-N 0.000 description 1
- CTHJQRHPNQEPAB-UHFFFAOYSA-N 2-methoxyethenylbenzene Chemical class COC=CC1=CC=CC=C1 CTHJQRHPNQEPAB-UHFFFAOYSA-N 0.000 description 1
- PJXJBPMWCKMWLS-UHFFFAOYSA-N 2-methyl-3-methylidenepent-1-ene Chemical compound CCC(=C)C(C)=C PJXJBPMWCKMWLS-UHFFFAOYSA-N 0.000 description 1
- OAOZZYBUAWEDRA-UHFFFAOYSA-N 3,4-dimethylidenehexane Chemical compound CCC(=C)C(=C)CC OAOZZYBUAWEDRA-UHFFFAOYSA-N 0.000 description 1
- BUZICZZQJDLXJN-UHFFFAOYSA-N 3-azaniumyl-4-hydroxybutanoate Chemical compound OCC(N)CC(O)=O BUZICZZQJDLXJN-UHFFFAOYSA-N 0.000 description 1
- FKAWETHEYBZGSR-UHFFFAOYSA-N 3-methylidenepyrrolidine-2,5-dione Chemical compound C=C1CC(=O)NC1=O FKAWETHEYBZGSR-UHFFFAOYSA-N 0.000 description 1
- ZLPORNPZJNRGCO-UHFFFAOYSA-N 3-methylpyrrole-2,5-dione Chemical group CC1=CC(=O)NC1=O ZLPORNPZJNRGCO-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 1
- 241000640882 Condea Species 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 1
- 239000006237 Intermediate SAF Substances 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 229920006978 SSBR Polymers 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000000370 acceptor Substances 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 235000010210 aluminium Nutrition 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- QNRMTGGDHLBXQZ-UHFFFAOYSA-N buta-1,2-diene Chemical compound CC=C=C QNRMTGGDHLBXQZ-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229920003211 cis-1,4-polyisoprene Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- WITDFSFZHZYQHB-UHFFFAOYSA-N dibenzylcarbamothioylsulfanyl n,n-dibenzylcarbamodithioate Chemical compound C=1C=CC=CC=1CN(CC=1C=CC=CC=1)C(=S)SSC(=S)N(CC=1C=CC=CC=1)CC1=CC=CC=C1 WITDFSFZHZYQHB-UHFFFAOYSA-N 0.000 description 1
- PGAXJQVAHDTGBB-UHFFFAOYSA-N dibutylcarbamothioylsulfanyl n,n-dibutylcarbamodithioate Chemical compound CCCCN(CCCC)C(=S)SSC(=S)N(CCCC)CCCC PGAXJQVAHDTGBB-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 229940083094 guanine derivative acting on arteriolar smooth muscle Drugs 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- VILGDADBAQFRJE-UHFFFAOYSA-N n,n-bis(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SN(SC=3SC4=CC=CC=C4N=3)C(C)(C)C)=NC2=C1 VILGDADBAQFRJE-UHFFFAOYSA-N 0.000 description 1
- CMAUJSNXENPPOF-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-n-cyclohexylcyclohexanamine Chemical compound C1CCCCC1N(C1CCCCC1)SC1=NC2=CC=CC=C2S1 CMAUJSNXENPPOF-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 150000001282 organosilanes Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- PMJHHCWVYXUKFD-UHFFFAOYSA-N piperylene Natural products CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000006235 reinforcing carbon black Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 229920006027 ternary co-polymer Polymers 0.000 description 1
- 125000003698 tetramethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 1
- 238000012345 traction test Methods 0.000 description 1
- 239000012936 vulcanization activator Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3415—Five-membered rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
Definitions
- the present invention relates to rubber compositions intended in particular for the manufacture of tires or semi-finished products for tires, as well as antireversion agents that can be used for the thermal protection of such compositions.
- the known disadvantage of sulfur vulcanization is that it leads to a limited resistance of the vulcanizates obtained, due to thermal aging ("thermal aging") of the latter.
- thermal aging the vulcanizates of diene elastomers crosslinked from sulfur have a significant sensitivity to temperature when the latter reaches a value close to the initial firing temperature or vulcanization.
- This phenomenon known as reversion, is accompanied by a degradation of the mechanical properties of the vulcanizates.
- antireversion agents for thermally stabilizing the vulcanizates.
- a widely described family of anti-eversion agents is the maleimide compounds, more particularly the bismaleimides or biscitraconimides used alone or in combination with other compounds (see for example EP 191931 or US 4803250, EP 640114 or WO93 / 23467, EP 703943 or US 5872188, EP 709234 or US 5503940, EP 823453 or US 6079468, EP 988999, US 5328636, US 5616279, US 5623007, WO92 / 07904 or US 5426155, WO95 / 16738, JP2001 -226528).
- maleimide compounds make it possible to offer the vulcanizates an improved resistance to reversion compared with the aforementioned bismaleimides or biscitraconimides.
- These maleimide compounds are citraconimidomaleimides (WO 2005/026250) and itaconimidomaleimides (WO 2006/099985) which in both cases have a maleimide function associated with a citraconimide function for one and itaconimide for the others.
- a first subject of the invention relates to a rubber composition that can be used for the manufacture of tires, based on at least one diene elastomer, a reinforcing filler, a sulfur-based vulcanization system and a maleimide compound, characterized in that said maleimide compound is a polymaleimide of the formula:
- the invention also relates to a method for preparing a rubber composition that can be used for the manufacture of tires and having an improved resistance to reversion, this composition being based on a diene elastomer, a reinforcing filler and a sulfur-based vulcanization system, said method comprising the following steps:
- the invention also relates to the use of a composition according to the invention for the manufacture of a finished article or a semi-finished rubber product intended for any system of ground connection of motor vehicles, such as pneumatic, internal safety support for tire, wheel, rubber spring, elastomeric joint, other suspension and anti-vibration element.
- motor vehicles such as pneumatic, internal safety support for tire, wheel, rubber spring, elastomeric joint, other suspension and anti-vibration element.
- the subject of the invention is particularly the use of a composition according to the invention for the manufacture of tires or semi-finished rubber products intended for these tires, these semi-finished products being preferably chosen from the group consisting of treads, crown reinforcement plies, flanks, carcass reinforcement plies, beads, protectors, layers, rubber blocks and other internal rubbers, in particular decoupling erasers, intended to provide the connection or the interface between the aforementioned zones of the tires.
- the invention also relates to finished articles and semi-finished products of rubber themselves, in particular tires and semi-finished products for tires, when they comprise an elastomeric composition according to the invention.
- the tires in accordance with the invention are intended in particular for passenger vehicles as well as for industrial vehicles chosen from vans, "heavy goods vehicles” - ie, metro, buses, road transport vehicles (trucks, tractors, trailers), off-road vehicles. la-route - agricultural or civil engineering machinery, airplanes, other transport or handling vehicles.
- the rubber compositions are characterized, before and after firing, as indicated below.
- the measurements are carried out at 130 ° C. in accordance with the French standard NF T 43-005 (1991).
- the evolution of the consistometric index as a function of time makes it possible to determine the toasting time of the rubber compositions, evaluated according to the above-mentioned standard by the parameter T5 (case of a large rotor), expressed in minutes, and defined as the time required to obtain an increase in the consistometric index (expressed in MU) of 5 units above the minimum value measured for this index.
- the measurements are carried out at 150 ° C. with an oscillating chamber rheometer according to DIN 53529 - Part 3 (June 1983).
- the evolution of the rheometric torque as a function of time describes the evolution of the stiffening of the composition as a result of the vulcanization reaction.
- the measurements are processed according to DIN 53529 - Part 2 (March 1983): the minimum and maximum torques, measured in dN.m (deciNewton.meter), are respectively named C m j n and C max ; the difference noted ⁇ Couple (in dN.m) between C max and C m j n is also measured, which makes it possible to evaluate the vulcanization efficiency.
- the mechanical properties indicated below are those measured at "optimum cooking", that is to say, in known manner, those obtained for a determined cooking temperature, after the minimum cooking time to reach the maximum rheometric torque C max .
- the reversion can be analyzed according to different methods, the aim being to determine, indirectly, the evolution of the density of bridges of sulfur, between a so-called optimum cooking (corresponding to maximum torque C max ) and prolonged cooking.
- the first approach consists of measuring the evolution (decrease) of the rheometric torque: the parameters AR 60 and AR 180 represent the evolution in% of the torque between C max and the torque measured after 60 or 180 min of cooking, respectively, at a determined firing temperature (eg 150 ° C). The higher the AR 60 and ARi 80 parameters, the greater the reversion phenomenon.
- the second approach is to measure the evolution (decrease) of the aforementioned MA100 or MA300 modules: the parameters ⁇ MA100 and ⁇ MA300 correspond to the evolution in% of the respective modules measured at the optimum of cooking (C max ) and after a cooking of 6 hours, at a determined cooking temperature (150 ° C).
- C max the optimum of cooking
- 150 ° C the cooking temperature
- the rubber compositions according to the invention are based on at least one (that is to say one or more) diene (s) elastomer (s), one (or more) reinforcing filler (s) (s). ), one (or more) crosslinking system (s) and one (or more) polymaleimide compound (s) of formula (I) above.
- composition based on means a composition comprising the mixture and / or the reaction product of the various constituents used, some of these basic constituents being capable of or intended to react with each other. at least in part during the various phases of manufacture of the composition, in particular during its vulcanization.
- elastomer or “diene” rubber is meant in known manner an elastomer derived at least in part (ie a homopolymer or a copolymer) of monomers dienes (monomers bearing two carbon-carbon double bonds, conjugated or not). These diene elastomers can be classified into two categories: "essentially unsaturated” or "essentially saturated”.
- essentially unsaturated is generally understood to mean a diene elastomer derived at least in part from conjugated diene monomers having a level of units or units of diene origin (conjugated dienes) which is greater than 15% (mol%).
- diene elastomers such as butyl rubbers or copolymers of dienes and alpha-olefins of the EPDM type do not fall within the above definition and may in particular be described as "essentially saturated” diene elastomers. "(low or very low diene origin, always less than 15%).
- the term “highly unsaturated” diene elastomer is particularly understood to mean a diene elastomer having a content of units of diene origin (conjugated dienes) which is greater than 50%.
- iene elastomer can more particularly be understood as being capable of being used in the compositions in accordance with the invention:
- diene elastomer any type of diene elastomer, one skilled in the art of the tire will understand that the present invention is first used with essentially unsaturated diene elastomers, in particular of the type (a) or ( b) above.
- conjugated dienes 1,3-butadiene, 2-methyl-1,3-butadiene, 2,3-di (C 1 -C 5 alkyl) -1,3-butadienes, such as for example 2,3-dimethyl-1,3-butadiene, 2,3-diethyl-1,3-butadiene, 2-methyl-3-ethyl-1,3-butadiene, 2-methyl-3-isopropyl-1 3-butadiene, aryl-1,3-butadiene, 1,3-pentadiene, 2,4-hexadiene.
- Suitable vinyl aromatic compounds are, for example, styrene, ortho-, meta-, para-methylstyrene, the "vinyl-toluene" commercial mixture, para-tertiarybutylstyrene, methoxystyrenes, chlorostyrenes, vinylmesitylene and divinylbenzene. vinyl naphthalene.
- the copolymers may contain between 99% and 20% by weight of diene units and between 1% and 80% by weight of vinyl aromatic units.
- the elastomers may have any microstructure which is a function of the polymerization conditions used, in particular the presence or absence of a modifying and / or randomizing agent and the amounts of modifying and / or randomizing agent used.
- the elastomers can be for example block, statistical, sequence, microsequential, and be prepared in dispersion or in solution; they can be coupled and / or star or functionalized with a coupling agent and / or starring or functionalization.
- butadiene-styrene-isoprene copolymers are especially suitable those having a styrene content of between 5% and 50% by weight and more particularly of between 10% and 40%, an isoprene content of between 15% and 60%.
- the diene elastomer of the composition according to the invention is preferably chosen from the group of highly unsaturated diene elastomers which consists of polybutadienes (BR), polyisoprenes (IR), natural rubber (NR) 5 copolymers butadiene, isoprene copolymers and mixtures of these elastomers.
- Such copolymers are more preferably selected from the group consisting of butadiene-styrene copolymers (SBR), isoprene-butadiene copolymers (BIR), isoprene-styrene copolymers (SIR) and isoprene-copolymers.
- SBIR butadiene-styrene
- the diene elastomer is predominantly (that is to say for more than 50 phr) an SBR, whether it is an SBR prepared in emulsion ("ESBR") or a solution-prepared SBR ("SSBR”), or a blend (mixture) SBR / BR, SBR / NR (or SBR / IR), or BR / NR (or BR / IR).
- SBR SBR prepared in emulsion
- SSBR solution-prepared SBR
- an SBR elastomer use is made in particular of an SBR having a styrene content of between 20% and 30% by weight, a vinyl bond content of the butadiene part of between 15% and 65%, a bond content of trans-1,4 of between 15% and 75% and a Tg of -20 ° C to -55 ° C; such an SBR can be advantageously used in admixture with a BR preferably having more than 90% cis-1,4 bonds.
- the diene elastomer is predominantly (for more than 50 phr) an isoprene elastomer.
- the compositions of the invention are intended to constitute, in tires, the rubber matrices of certain treads (for example for industrial vehicles), crown reinforcing plies (for example work webs, protective webs or hoop webs), carcass reinforcement plies, flanks, beads, protectors, underlayments, rubber blocks and other internal gums providing the interface between aforementioned areas of the tires.
- compositions according to the invention are for example advantageously usable as "decoupling gums" in the areas of the tire (called “decoupling zones”) whose function is to ensure a mechanical decoupling between two different parts of said tire, these zones being of known way exposed to the risks of heating, and therefore reversion most important. They can also advantageously form the annular gum profiles used to stiffen the sidewalls of tires designed for run-flat tires (see US Patent No. 5,427,166, for example).
- isoprene elastomer in known manner a homopolymer or a copolymer of isoprene, in other words a diene elastomer chosen from the group consisting of natural rubber (NR), synthetic polyisoprenes (IR), different isoprene copolymers and mixtures of these elastomers.
- NR natural rubber
- IR synthetic polyisoprenes
- isoprene copolymers examples include isobutene-isoprene copolymers (butyl rubber-HR), isoprene-styrene copolymers (SIR), isoprene-butadiene copolymers (BIR) or isoprene-butadiene-styrene copolymers. (SBIR).
- This isoprene elastomer is preferably natural rubber or synthetic cis-1,4 polyisoprene; of these synthetic polyisoprenes, polyisoprenes having a content (mol%) of cis-1,4 bonds greater than 90%, more preferably still greater than 98%, are preferably used.
- the composition conforms to The invention may contain at least one essentially saturated diene elastomer, in particular at least one EPDM copolymer or a butyl rubber (optionally chlorinated or brominated), whether these copolymers are used alone or in a mixture with diene elastomers which are highly unsaturated as mentioned above, in particular NR or IR, BR or SBR.
- compositions of the invention may contain a single diene elastomer or a mixture of several diene elastomers, the diene elastomer (s) may be used in combination with any type of synthetic elastomer other than diene, or even with polymers other than elastomers, for example thermoplastic polymers.
- reinforcing filler known for its capacity to reinforce a rubber composition that can be used for manufacturing tires, for example an organic filler such as carbon black, or a reinforcing inorganic filler such as silica to which will be associated in this second case a coupling agent.
- Carbon blacks are suitable for all carbon blacks, in particular blacks of the HAF, ISAF, SAF type conventionally used in tires (so-called pneumatic grade blacks).
- the reinforcing carbon blacks of the 100, 200 or 300 series such as, for example, black NI 15, N134, N234, N326, N330, N339, N347, N375, or, depending on the intended applications, black higher series (eg N660, N683, N772).
- any inorganic or mineral filler regardless of its color and origin (natural or synthetic), also called “white” charge, “clear” charge or “non-black filler” charge as opposed to carbon black, this inorganic filler being able to reinforce on its own, with no other means than an intermediate coupling agent, a rubber composition intended for the tire manufacturing, in other words able to replace, in its reinforcing function, a conventional carbon black pneumatic grade; such a filler is generally characterized, in known manner, by the presence of hydroxyl groups (-OH) on its surface.
- -OH hydroxyl groups
- Suitable reinforcing inorganic fillers are mineral fillers of the siliceous type, in particular silica (SiO 2 ), or of the aluminous type, in particular alumina (Al 2 O 3).
- the silica used may be any reinforcing silica known to those skilled in the art, in particular any precipitated or fumed silica having a BET surface and a CTAB specific surface area both less than 450 mVg, preferably from 30 to 400 m 2 / g .
- HDS highly dispersible precipitated silicas
- reinforcing aluminas examples include “Baikalox”"A125” or “CR125” aluminums from the Baikowski company, “APA-100RDX” from Condea, “Aluminoxid C” from Degussa) or “AKP-G015" from Sumitomo Chemicals.
- a well-known at least bifunctional coupling agent (or bonding agent) will be used in a well known manner to provide a sufficient chemical and / or physical connection between the inorganic filler. (surface of its particles) and the diene elastomer, in particular organosilanes or bifunctional polyorganosiloxanes.
- the content of total reinforcing filler is between 10 and 200 phr, more preferably between 20 and 150 phr (parts by weight per hundred parts of elastomer), optimum being different depending on the intended applications: the level of reinforcement expected on a bicycle tire, for example, is known in a manner well below that required on a tire capable of running at high speed in a sustained manner, for example a motorcycle tire, a tire for a passenger vehicle or for a commercial vehicle such as a heavy truck.
- the rubber compositions of the invention have the novel and inventive characteristic of using, as anti-eversion agent, a polymaleimide compound comprising at least three maleimide functions, corresponding to the following formula (I):
- the radicals R 1, R 2 , R 3 and R 4 comprise from 1 to 25 carbon atoms and optionally one or more heteroatoms chosen from O, N, S, Si and P.
- the radicals R 1, R 2 , R 3 and R 4 are chosen from the group consisting of alkylenes having from 1 to 20 carbon atoms, cycloalkylenes having from 6 to 24 carbon atoms, arylenes having from 6 to 18 carbon atoms and aralkylenes having 7 to 25 carbon atoms, the alkylene radicals being branched and may be interrupted by one or more heteroatoms selected from O, N, S, Si and P.
- the radicals R 1, R 2 and R 3 are alkylenes and n is 0, X being then a nitrogen atom.
- radicals R 1, R 2 and R 3 are ethylenes, the selected polymaleimide being even more preferably tris (2-maleimidoethyl) amine.
- the polymaleimide of formula (I) is present in the composition according to the invention at a preferential rate of between 0.1 and 10 phr. Below the minimum indicated, the intended technical effect may be insufficient, whereas beyond the maximum indicated, there is a double risk for the plasticizing compositions in the raw state and excessive stiffening at the same time. cooked state. For all these reasons, a more preferred level is used in a range of 0.2 to 5 phr. An amount within a range of 0.2 to 3 phr has proved particularly suitable for pneumatic application.
- the vulcanization system itself is based on sulfur (or a sulfur-donor agent) and a primary vulcanization accelerator.
- sulfur or a sulfur-donor agent
- a primary vulcanization accelerator To this basic vulcanization system are added, incorporated during the first non-productive phase and / or during the production phase as described later, various known secondary accelerators or vulcanization activators such as zinc oxide.
- Sulfur is used at a preferential level of between 0.5 and 10 phr, more preferably between 1 and 8 phr, in particular between 1 and 6 phr, when the composition of the invention is intended, according to a preferred embodiment of the invention. invention, to constitute an inner tire rubber, in particular a decoupling rubber.
- the primary vulcanization accelerator is used at a preferential rate of between 0.5 and 10 phr, more preferably between 0.5 and 5.0 phr.
- Such an accelerator it is known, must allow a crosslinking of the rubber compositions in industrially acceptable times, while preserving a minimum safety period ("toasting time") during which the compositions can be shaped without risk of premature vulcanization (“roasting").
- Any compound capable of acting as an accelerator for vulcanizing diene elastomers in the presence of sulfur may be used.
- Thiazole accelerators and their derivatives are especially selected from the group consisting of 2-mercaptobenzothiazole, 2-mercaptobenzothiazyl disulfide, N-cyclohexyl-2-benzothiazyl sulfenamide, N, N-dicyclohexyl-2-benzothiazyl sulfenamide, N 4-tert-butyl-2-benzothiazylsulfenamide, N-cyclohexyl-2-benzothiazylsulfenimide, N-tert-butyl-2-benzothiazylsulfenimide and mixtures thereof.
- Thiuram type accelerators are especially chosen from the preferred group consisting of tetramethyl-thiuram monosulfide, tetramethylthiuram disulfide, tetraethylthiuram disulfide, tetrabutylthiuram disulfide, tetraisoisobutyl disulfide.
- thiazole or thiuram type accelerators are described in more detail, in particular in the patent application WO 2005/026250 already mentioned above.
- accelerators that can be used in the compositions of the invention, mention may be made of zinc dithiocarbamates, in particular zinc tetramethyl dithiocarbamate, zinc tetraethyl dithiocarbamate and zinc tetrabenzyl dithiocarbamate. Among them, zinc tetrabenzyl dithiocarbamate is more preferably retained.
- the primary vulcanization accelerators used in the composition according to the invention are more preferably selected from the group consisting of 2-mercaptobenzothiazyl disulfide (abbreviated "MBTS”), N-cyclohexyl-2-benzothiazyl sulfenamide (in abbreviated “CBS”), N, N-dicyclohexyl-2-benzothiazyl sulfenamide (abbreviated “DCBS”), N-tert-butyl-2-benzothiazyl sulfenamide (abbreviated as "TBBS”), N-tert-butyl- 2-benzothiazyl sulfenimide (abbreviated as "TBSI”) and mixtures of these compounds.
- MBTS 2-mercaptobenzothiazyl disulfide
- CBS N-cyclohexyl-2-benzothiazyl sulfenamide
- DCBS N-dicyclohexyl-2-benz
- the elastomeric compositions according to the invention may also comprise all or part of the usual additives used in rubber compositions intended for the manufacture of a tire, such as, for example, plasticizers or extension oils, that these are aromatic or non-aromatic nature, pigments, protective agents such as anti-ozone waxes, chemical antiozonants, anti-oxidants, anti-fatigue agents, adhesion promoters, coupling activators, reinforcing resins, acceptors and / or donors of methylene, or even other anti-eversion agents, for example conventional bismaleimides or biscitraconimides.
- plasticizers or extension oils that these are aromatic or non-aromatic nature, pigments, protective agents such as anti-ozone waxes, chemical antiozonants, anti-oxidants, anti-fatigue agents, adhesion promoters, coupling activators, reinforcing resins, acceptors and / or donors of methylene, or even other anti-eversion agents, for example conventional bismaleimides or bisc
- these compositions comprise, as preferred non-aromatic or very weakly aromatic plasticizing agent, at least one compound selected from the group consisting of naphthenic, paraffinic, MES, TDAE oils, esters (especially trioleate) oils.
- glycerol the hydrocarbon plasticizing resins preferably having a high value of Tg (preferably greater than 30 ° C), and mixtures of such compounds.
- the reinforcing filler used is an inorganic filler
- recovery agents for such an inorganic filler more generally, processing aid agents that are capable in a known manner, thanks to an improvement in the dispersion of the inorganic filler in the rubber matrix and a lowering of the viscosity of the compositions, to improve their ability to implement in the green state.
- compositions are manufactured in appropriate mixers, using two successive preparation phases well known to those skilled in the art: a first phase of work or thermomechanical mixing (so-called “non-productive” phase) at high temperature, up to a maximum of maximum temperature between 110 ° C and 190 ° C, preferably between 130 ° C and 180 ° C, followed by a second phase of mechanical work (so-called “productive” phase) to a lower temperature, typically less than 1 10 ° C, for example between 40 ° C and 100 ° C, finishing phase during which is incorporated the vulcanization system.
- a first phase of work or thermomechanical mixing at high temperature, up to a maximum of maximum temperature between 110 ° C and 190 ° C, preferably between 130 ° C and 180 ° C
- a second phase of mechanical work so-called “productive” phase
- the method according to the invention for preparing a rubber composition having improved resistance to reversion comprises the following steps: . to incorporate in a diene elastomer, during a first so-called “non-productive" step, at least one reinforcing filler, by thermomechanically kneading the whole, in one or more times, until a maximum temperature of between 10 ° C. C and 190 ° C; • cool the assembly to a temperature below 100 ° C;
- the non-productive phase is carried out in a single thermomechanical step during which all the necessary basic constituents (diene elastomer) are introduced into a suitable mixer such as a conventional internal mixer. , reinforcing filler and coupling agent if necessary, optionally all or part of the polymaleimide compound), then in a second step, for example after one to two minutes of mixing, the other additives, any additional coating or processing agents, with the exception of the vulcanization system.
- the total mixing time in this non-productive phase is preferably between 1 and 15 minutes.
- the vulcanization system and the polymaleimide compound are then incorporated in an external mixer such as a roll mill. or the remaining part, if any).
- the whole is then mixed (productive phase) for a few minutes, for example between 2 and 15 minutes.
- the final composition thus obtained can then be calendered, for example in the form of a sheet, a plate or extruded, for example to form a rubber profile used for the manufacture of a semi-finished tire product, such as webs, tapes, underlays, various rubber blocks, reinforced or not with textile or metal reinforcements, intended to form part of the tire structure.
- the vulcanization (or baking) can then be carried out in a known manner at a temperature generally of between 130 ° C. and 200 ° C., preferably under pressure, for a sufficient time which may vary, for example, between 5 and 90 min in dependence. in particular the cooking temperature, the vulcanization system adopted and the kinetics of vulcanization of the composition under consideration.
- the invention relates to the rubber compositions described above both in the so-called “raw” state (i.e., before firing) and in the so-called “cooked” or vulcanized state (i.e. after vulcanization).
- the polymaleimide compound of formula (I) according to the invention used in the following examples is tris (2-maleimidoethyl) amine, a synthetic route of which is described by Gerhard Kossmehl, Hans-Ingo Nagel and Andreas Pahl in "Die Angewandte Makromoleculare Chemie, 227, 139-157 (1995).
- an internal mixer is introduced with the usual "Banburry” type pallets (capacity: about 3.5 liters), 70% filled, and whose initial tank temperature is about 60 ° C., the diene elastomer (or the mixture of diene elastomers, if appropriate), the reinforcing filler (carbon black) and, after one to two minutes of mixing, the various other ingredients with the exception of vulcanization system and anti-eversion agent.
- Thermomechanical work (non-productive phase) is then carried out in one step (total mixing time equal to about 5 minutes), until a maximum "falling" temperature of about 160 ° C. is reached.
- the mixture thus obtained is recovered, cooled and then the vulcanization system is added and (if it is present in the composition) the anti-eversion agent on an external mixer (homo-finisher) at 40 ° C., mixing the whole. (productive phase) for 3 to 4 minutes on this roller tool.
- compositions thus obtained are then calendered in the form of plates (thickness of 2 to 3 mm) or thin sheets of rubber for the measurement of their physical or mechanical properties, or extruded to form profiles that can be used directly, after cutting and / or assembly to the desired dimensions, as a semi-finished tire product.
- This test aims to demonstrate the resistance to reversion and improved thermal stability of a composition according to the invention intended to form a decoupling rubber located between the crown reinforcement and the radial carcass reinforcement of a tire. of the civil engineering type.
- composition according to the invention is compared with three control compositions, with or without an anti-eversion agent, the three compositions tested being identical, with the following differences:
- composition T1 control without antireversion agent
- T2 composition control with conventional anti-eversion agent (bismaleimide)
- composition C1 composition according to the invention (trismaleimide).
- the bismaleimide compound used in the control composition T2 is meta-phenylenebismaleimide (abbreviated to "MPBM”), which is well known to those skilled in the art and corresponds to the following particular formula:
- MPBM meta-phenylenebismaleimide
- the essential characteristic distinguishing the two compounds above, and therefore the composition according to the invention C1 of the control composition T2 is the presence of a third maleimide function without the presence of an aromatic ring between the different maleimide functions.
- the two maleimide compounds (bismaleimide and trismaleimide) are used at an isomolar level relative to each other in their respective composition.
- Table 1 gives the formulation of the different compositions (rate of the different products expressed in phr), and Table 2 gives the properties before and after curing, the rheometric properties as well as various parameters measuring the reversion.
- the evolution of the rheometric torque is followed after 40 minutes at 150 ° C.
- the thermal stability of the compositions is also assessed by the evolution of the nominal secant modulus at 100% and at 300% elongation, between the measurement at the optimum of cooking and after prolonged cooking for 6 hours (temperature of 150 ° C. ).
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0611513A FR2910901B1 (fr) | 2006-12-27 | 2006-12-27 | Composition de caoutchouc comportant un compose polymaleimide |
PCT/EP2007/011150 WO2008080553A1 (fr) | 2006-12-27 | 2007-12-19 | Composition de caoutchouc comportant un compose polymaleimide |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2104707A1 true EP2104707A1 (de) | 2009-09-30 |
Family
ID=38542113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07856873A Withdrawn EP2104707A1 (de) | 2006-12-27 | 2007-12-19 | Kautschukzusammensetzung, enthaltend eine polymaleinimidverbindung |
Country Status (5)
Country | Link |
---|---|
US (1) | US8008399B2 (de) |
EP (1) | EP2104707A1 (de) |
JP (1) | JP5450090B2 (de) |
FR (1) | FR2910901B1 (de) |
WO (1) | WO2008080553A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2284217B1 (de) * | 2009-08-07 | 2011-12-07 | Rhein Chemie Rheinau GmbH | Vulkanisationsbeschleunigende Mischung |
WO2012044317A1 (en) * | 2010-09-30 | 2012-04-05 | Michelin Recherche Et Technique S.A. | Barrier layer for inflatable articles |
FR2975045B1 (fr) * | 2011-05-12 | 2013-06-14 | Michelin Soc Tech | Pneumatique dont la zone sommet est pourvue d'une sous-couche comportant un elastomere thermoplastique |
FR2975044B1 (fr) | 2011-05-12 | 2013-06-14 | Michelin Soc Tech | Pneumatique pourvu d'une bande de roulement comprenant un elastomere thermoplastique |
JP5986368B2 (ja) * | 2011-11-16 | 2016-09-06 | 株式会社ブリヂストン | 変性天然ゴム及びその製造方法、並びに、ゴム組成物及びタイヤ |
FR3021971B1 (fr) | 2014-06-05 | 2016-06-03 | Michelin & Cie | Pneumatique a faible resistance au roulement |
FR3021972B1 (fr) | 2014-06-05 | 2016-06-03 | Michelin & Cie | Pneumatique a faible resistance au roulement |
FR3060573A1 (fr) * | 2016-12-15 | 2018-06-22 | Compagnie Generale Des Etablissements Michelin | Procede de synthese de polymeres dieniques modifies par des groupements derive d'un hydrocarbure aromatique polycyclique, produit issu de ce procede et composition le contenant. |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0191931B1 (de) | 1985-01-19 | 1990-07-04 | Sumitomo Chemical Company, Limited | Kautschukmischung |
TW209231B (de) | 1990-10-29 | 1993-07-11 | Akzo Nv | |
US5736615A (en) | 1992-04-06 | 1998-04-07 | The Goodyear Tire & Rubber Company | Rubber vulcanization composition |
TW222663B (de) | 1992-05-13 | 1994-04-21 | Akzo Nv | |
US5262488A (en) | 1992-08-26 | 1993-11-16 | The Goodyear Tire & Rubber Company | Rubber vulcanization composition with bis-(2,5-polythio-1,3,4 thiadiazole) |
TW253899B (de) | 1993-06-14 | 1995-08-11 | Akzo Nv | |
WO1995016738A1 (en) | 1993-12-17 | 1995-06-22 | Akzo Nobel N.V. | Electronegative-substituted bismaleimide anti-reversion coagents |
DE4406174A1 (de) * | 1994-02-25 | 1995-08-31 | Chemie Linz Deutschland | Toluoltrismaleinimid, dessen Herstellung und Verwendung als Vernetzer |
DE4415302A1 (de) * | 1994-04-30 | 1995-11-02 | Huels Chemische Werke Ag | Verfahren zur Herstellung von Verbundgegenständen aus Polyestern und Elastomeren |
US5503940A (en) | 1994-10-24 | 1996-04-02 | The Goodyear Tire & Rubber Company | Elastomeric laminates containing a solventless elastomeric adhesive composition |
KR100193491B1 (ko) | 1995-06-21 | 1999-06-15 | 신형인 | 항공기 타이어용 카카스에 쓰이는 항-리버전 고무조성물 |
US6079468A (en) | 1996-08-09 | 2000-06-27 | The Goodyear Tire & Rubber Company | Rubber article containing a bismaleimide and a bis benzothiazolydithio end capped compound |
CA2282027A1 (en) | 1998-09-25 | 2000-03-25 | Thomas Paul Wolski | Antireversion agent for inserts used in runflat tires |
JP4204722B2 (ja) * | 1999-02-05 | 2009-01-07 | 株式会社ブリヂストン | ゴム組成物及び空気入りタイヤ |
JP4448225B2 (ja) | 2000-02-16 | 2010-04-07 | 株式会社ブリヂストン | ゴム組成物および空気入りタイヤ |
DE60102336T2 (de) * | 2000-10-19 | 2005-02-24 | Bridgestone Corp. | Kautschukzusammensetzung die Polymaleimid enthält und Reifen |
JP2002194139A (ja) * | 2000-10-19 | 2002-07-10 | Bridgestone Corp | ポリマレイミド含有ゴム組成物およびタイヤ |
FR2859730A1 (fr) | 2003-09-15 | 2005-03-18 | Michelin Soc Tech | Composition de caoutchouc comportant un citracomaleimide. |
FR2883568B1 (fr) | 2005-03-24 | 2007-05-18 | Michelin Soc Tech | Composition de caoutchouc comportant un itaconimidomaleimide |
-
2006
- 2006-12-27 FR FR0611513A patent/FR2910901B1/fr not_active Expired - Fee Related
-
2007
- 2007-12-19 WO PCT/EP2007/011150 patent/WO2008080553A1/fr active Application Filing
- 2007-12-19 EP EP07856873A patent/EP2104707A1/de not_active Withdrawn
- 2007-12-19 US US12/521,065 patent/US8008399B2/en not_active Expired - Fee Related
- 2007-12-19 JP JP2009543368A patent/JP5450090B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2008080553A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP5450090B2 (ja) | 2014-03-26 |
US8008399B2 (en) | 2011-08-30 |
WO2008080553A1 (fr) | 2008-07-10 |
US20100022699A1 (en) | 2010-01-28 |
JP2010514859A (ja) | 2010-05-06 |
FR2910901B1 (fr) | 2010-06-25 |
FR2910901A1 (fr) | 2008-07-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2285886B1 (de) | Kautschukzusammensetzung für reifen mit neuem antioxidationssystem | |
EP1115785B1 (de) | Haftvermittlerzusammensetzung (weisser füllstoff/dienrubber) die ein alkoxysilanpolysulfid, ein enamin und ein guanidinderivat enthält | |
EP2092010B1 (de) | Kautschukzusammensetzung für reifen mit neuem antioxidanssystem | |
EP1773938B1 (de) | Zinkfreie oder praktisch zinkfreie kautschukzusammensetzung | |
EP1863871B1 (de) | Kautschukzusammensetzung, enthaltend ein itaconimidomaleinimid | |
EP2104707A1 (de) | Kautschukzusammensetzung, enthaltend eine polymaleinimidverbindung | |
WO2008080555A1 (fr) | Systeme plastifiant et composition de caoutchouc pour pneumatique incorporant ledit systeme | |
FR2910902A1 (fr) | Composition de caoutchouc a tres faible taux de zinc | |
FR2945814A1 (fr) | Composition de caoutchouc pour pneumatique comportant un compose acetylacetonate | |
FR2954332A1 (fr) | Article notamment pneumatique avec melange de caoutchouc externe comportant un sel de lanthanide | |
WO2014095588A1 (fr) | Pneumatique comportant une composition de caoutchouc comprenant une resine époxyde et un poly-acide | |
WO2005026250A1 (fr) | Composition de caoutchouc comportant un citraconimidomaleimide | |
EP2279085B1 (de) | Reifen mit lagenrandmantel mit geringer hysterese | |
EP2231419B1 (de) | Kautschukzusammensetzung mit äussert geringem zinkgehalt | |
WO2010031855A1 (fr) | Flanc pour pneumatique | |
FR2873707A1 (fr) | Composition de caoutchouc depourvue de zinc | |
EP3393822B1 (de) | Reifenlauffläche mit mindestens einem metallchelat und/oder pigment | |
EP2379631B1 (de) | Zinkfreie oder praktisch zinkfreie kautschukmasse | |
EP3898263A1 (de) | Kautschukzusammensetzung mit einer polysulfidverbindung | |
WO2020128260A1 (fr) | Composition de caouthcouc comprenant un compose polysulfuré | |
WO2023174788A1 (fr) | Composition de caoutchouc comprenant une résine époxyde et un durcisseur |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20090727 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ROY, VANESSA Inventor name: BLANCHARD, CHRISTIANE Inventor name: MANCEAU, MATHIEU Inventor name: PAGANO, SALVATORE |
|
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MICHELIN RECHERCHE ET TECHNIQUE S.A. Owner name: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN |
|
17Q | First examination report despatched |
Effective date: 20160512 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20160928 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20170209 |